JP2007153231A - Automobile and its control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the deterioration of energy efficiency, and to suppress the power of a battery from becoming insufficient in the case of operating an air conditioner by a remote operation before starting this system. <P>SOLUTION: When a switch to be operated by an operator is turned off, or it is detected that the current traveling location is not present in the periphery of a destination based on data from a navigation system, the charging/discharging request power Pb* of a battery is set so that the remaining capacity of a battery can be made close to a predetermined quantity S1 with which energy efficiency and traveling performance are properly balanced (S240), and when the switch is turned on, and it is detected that the current traveling location is present in the periphery of the destination, the charging/discharging request power Pb* is set so that the remaining capacity of the battery can be made close to a predetermined value S2 which is larger than the predetermined quantity S1 (S250) as preparation for sufficiently achieving the supply of a power to be used by an air conditioner by a remote operation before starting this system next, and an engine or a motor is controlled. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automobile and a control method thereof.

Conventionally, as this type of automobile, an automobile equipped with an engine and equipped with a system for remotely operating an air conditioner by a keyless entry device has been proposed (for example, see Patent Document 1). In this car, when the air conditioner control signal instructing remote start of the air conditioner is received from the keyless entry device, the remaining amount of gasoline in the fuel tank is detected, and the engine is turned off when the detected remaining amount of gasoline exceeds a predetermined value. By starting the air conditioner as well as starting, the interior temperature can be made comfortable in advance.
JP 2004-359010 A

  In the automobile described above, the exhaust emission is deteriorated because the engine is operated to start the air conditioner. An automobile having an engine and a motor is provided with a battery having a relatively large capacity, so that the air conditioner can be started using electric power from the battery. However, when the remaining capacity of the battery is low, the air conditioner can be started. Can not. For this reason, it is conceivable to control the charging / discharging of the battery so that the remaining capacity of the battery is increased during traveling in preparation for the start of the air conditioner. However, if the remaining capacity of the battery is always in a large state, the energy efficiency deteriorates. There is a case. For example, when the running energy is regenerated by the motor during braking, the battery can accept less electric power, and the running energy may not be sufficiently recovered.

  The vehicle of the present invention and the control method thereof suppress the shortage of power in the power storage device when air conditioning the passenger compartment in advance by using power from the power storage device such as a battery while suppressing deterioration in energy efficiency. Objective.

  In order to achieve the above object, the automobile of the present invention and the control method thereof employ the following means.

The automobile of the present invention
An automobile comprising a drive system having an internal combustion engine capable of outputting driving power, power generation means for generating electric power using at least part of the power from the internal combustion engine, and an electric motor capable of inputting / outputting driving power There,
Power storage means capable of receiving power generated by the power generation means and capable of exchanging power with the motor;
An air conditioner for performing air conditioning in the passenger compartment by receiving power supplied from the power storage means;
An operation instruction receiving means capable of receiving an operation instruction of the air conditioner transmitted from a portable wireless device using wireless communication before the drive system is activated;
Air conditioning control means for controlling the air conditioning equipment so that air conditioning in the passenger compartment is performed when an operation instruction of the air conditioning equipment is received;
While the drive system is being activated, the first state is set as the target state of the power storage means during normal operation, and the power storage means is charged / discharged so as to approach the set target state, and the operator's operation The internal combustion engine, the power generation means, and the electric motor are controlled so that traveling power corresponding to the output is output, and when a predetermined condition is satisfied, as preparation for using the air conditioner from the wireless device next time A second state in which more power than the first state can be supplied is set as the target state of the power storage means, and the power storage means is charged / discharged so as to approach the set target state of the power storage means, and the operator's The gist of the present invention is to include a control unit that controls the internal combustion engine, the power generation unit, and the electric motor so that traveling power according to the operation is output.

  In the automobile of the present invention, a drive system having an internal combustion engine capable of outputting driving power, power generation means for generating power using at least part of the power from the internal combustion engine, and an electric motor capable of inputting / outputting the driving power; , Power storage means capable of receiving electric power generated by the power generation means and exchanging electric power with the motor, air-conditioning equipment for air-conditioning of the passenger compartment by receiving power supply, and wireless equipment portable before starting the drive system An operation instruction receiving means capable of receiving an operation instruction for the air conditioning equipment transmitted from the vehicle using wireless communication, and an air conditioning control means for controlling the air conditioning equipment so that the passenger compartment is air-conditioned when the operation instruction for the air conditioning equipment is received. When the drive system is activated, the power storage means approaches the target state set by setting the first state as the target state of the power storage means during normal operation. To control the internal combustion engine, the power generation means, and the electric motor so that traveling power corresponding to the operation of the operator is output, and when the predetermined condition is satisfied, the air conditioner is used from the wireless device next time. As a preparation, the storage device is charged and discharged so as to approach the target state of the storage device set by setting a second state in which a larger amount of power than the first state can be supplied to the target state of the storage device and the operation of the operator The internal combustion engine, the power generation means, and the electric motor are controlled so that traveling power corresponding to the output is output. Therefore, it is possible to suppress the shortage of the electric power of the power storage means when the air conditioner is used from the wireless device next time, and the energy is higher than that in which the target state of the power storage means is always set to the second state. The deterioration of efficiency can be suppressed.

  In such an automobile of the present invention, the control means sets and controls the target state of the power storage means to the second state, assuming that the predetermined condition is satisfied when a predetermined operation is performed by an operator. It can also be assumed. By doing so, the operator can voluntarily set the target state of the power storage means to the second state. That is, it is possible to suppress the deterioration of energy efficiency for the operation of a user who does not intend to use the air conditioner from the wireless device. Here, the “predetermined operation” includes a predetermined switch operation.

  The automobile of the present invention further includes a navigation device that outputs a travel route to a destination designated by an operator, and the control means determines that the navigation device has approached the designated destination. When the predetermined condition is satisfied, the target state of the power storage means may be set to the second state and controlled. In this way, the state of the power storage means can be brought close to the second state aiming at the end of driving of the automobile, so that the power storage is performed when the air conditioner is used from the wireless device next time while suppressing the deterioration of energy efficiency. It is possible to suppress the shortage of the power of the means.

  Furthermore, the automobile of the present invention further includes a state detection unit that detects a state of the power storage unit, and the air conditioning control unit operates when the detected state of the power storage unit is not in a state where power can be supplied to the air conditioner. It may be a means that does not operate the air conditioner regardless of reception of the instruction. In this way, it is possible to suppress the deterioration of the state of the power storage means.

The method for controlling an automobile of the present invention includes:
A drive system having an internal combustion engine capable of outputting power for traveling, power generation means for generating power using at least part of the power from the internal combustion engine, and an electric motor capable of inputting / outputting power for travel; and Power storage means capable of receiving generated power and exchanging power with the electric motor, air-conditioning equipment for supplying air from the power storage means to air-condition the passenger compartment, and portable before starting the drive system An operation instruction receiving means capable of receiving an operation instruction of the air conditioner transmitted from a wireless device using wireless communication, and the air conditioner so that air conditioning of the passenger compartment is performed when the operation instruction of the air conditioner is received. An air-conditioning control means for controlling the vehicle,
While the drive system is being activated, the first state is set as the target state of the power storage means during normal operation, and the power storage means is charged / discharged so as to approach the set target state, and the operator's operation The internal combustion engine, the power generation means, and the electric motor are controlled so that traveling power corresponding to the output is output, and when a predetermined condition is satisfied, as preparation for using the air conditioner from the wireless device next time A second state in which more power than the first state can be supplied is set as the target state of the power storage means, and the power storage means is charged / discharged so as to approach the set target state of the power storage means, and the operator's The internal combustion engine, the power generation means, and the electric motor are controlled so that traveling power according to an operation is output.

  According to the automobile control method of the present invention, the internal combustion engine capable of outputting the driving power, the power generation means for generating power using at least a part of the power from the internal combustion engine, and the electric motor capable of inputting and outputting the driving power. A storage system capable of accepting the power generated by the power generation means and exchanging power with the motor, an air conditioner for air-conditioning the passenger compartment by receiving the power supply, and before starting the drive system An operation instruction receiving means capable of receiving an operation instruction of an air conditioner transmitted from a portable wireless device using wireless communication, and an air conditioner so that air conditioning of the passenger compartment is performed when the operation instruction of the air conditioner is received. In an automobile equipped with an air conditioning control means for controlling the air conditioner, during the normal operation of the drive system, the target state of the power storage means is set to the first state and is close to the target state set during normal operation. The internal combustion engine, the power generation means, and the electric motor are controlled so that the power storage means is charged and discharged and the driving power according to the operation of the operator is output. As a preparation for using the air conditioner, the power storage means is charged / discharged so as to approach the target state of the power storage means set and set in the second state in which more power than the first state can be supplied to the target state of the power storage means. In addition, the internal combustion engine, the power generation means, and the electric motor are controlled so that traveling power corresponding to the operation of the operator is output. Therefore, it is possible to suppress the shortage of the electric power of the power storage means when the air conditioner is used from the wireless device next time, and the energy is higher than that in which the target state of the power storage means is always set to the second state. The deterioration of efficiency can be suppressed.

  Next, the best mode for carrying out the present invention will be described using examples.

  FIG. 1 is a configuration diagram showing an outline of the configuration of a hybrid vehicle 20 according to an embodiment of the present invention. As shown in the figure, the hybrid vehicle 20 of the embodiment includes an engine 22, a three-shaft power distribution / integration mechanism 30 connected to a crankshaft 26 as an output shaft of the engine 22 via a damper 28, and power distribution / integration. A motor MG1 capable of generating electricity connected to the mechanism 30, a reduction gear 35 attached to a ring gear shaft 32a as a drive shaft connected to the power distribution and integration mechanism 30, a motor MG2 connected to the reduction gear 35, And a hybrid electronic control unit 70 for controlling the entire drive system. The hybrid electronic control unit 70 is connected to a receiver 92 that receives a signal from a remote control key 90 carried by the driver, and the air conditioner is instructed by an instruction from the remote control key 90 before starting the drive system. It is possible to control the activation of the conditioner (air conditioner), door lock, door unlock, etc.

  The engine 22 is an internal combustion engine that outputs power using a hydrocarbon-based fuel such as gasoline or light oil, and an engine electronic control unit (hereinafter referred to as an engine ECU) that receives signals from various sensors that detect the operating state of the engine 22. ) 24 is subjected to operation control such as fuel injection control, ignition control, intake air amount adjustment control and the like. The engine ECU 24 is in communication with the hybrid electronic control unit 70, controls the operation of the engine 22 by a control signal from the hybrid electronic control unit 70, and, if necessary, transmits data related to the operating state of the engine 22 to the hybrid electronic control. Output to unit 70.

  The power distribution and integration mechanism 30 includes an external gear sun gear 31, an internal gear ring gear 32 arranged concentrically with the sun gear 31, a plurality of pinion gears 33 that mesh with the sun gear 31 and mesh with the ring gear 32, A planetary gear mechanism is provided that includes a carrier 34 that holds a plurality of pinion gears 33 so as to rotate and revolve, and that performs differential action using the sun gear 31, the ring gear 32, and the carrier 34 as rotational elements. In the power distribution and integration mechanism 30, the crankshaft 26 of the engine 22 is connected to the carrier 34, the motor MG1 is connected to the sun gear 31, and the reduction gear 35 is connected to the ring gear 32 via the ring gear shaft 32a. When functioning as a generator, power from the engine 22 input from the carrier 34 is distributed according to the gear ratio between the sun gear 31 side and the ring gear 32 side, and when the motor MG1 functions as an electric motor, the engine input from the carrier 34 The power from 22 and the power from the motor MG1 input from the sun gear 31 are integrated and output to the ring gear 32 side. The power output to the ring gear 32 is finally output from the ring gear shaft 32a to the drive wheels 63a and 63b of the vehicle via the gear mechanism 60 and the differential gear 62.

  The motor MG1 and the motor MG2 are both configured as well-known synchronous generator motors that can be driven as generators and can be driven as motors, and exchange power with the battery 50 via inverters 41 and 42. The power line 54 connecting the inverters 41 and 42 and the battery 50 is configured as a positive electrode bus and a negative electrode bus shared by the inverters 41 and 42, and the electric power generated by one of the motors MG1 and MG2 It can be consumed by a motor. Therefore, battery 50 is charged / discharged by electric power generated from one of motors MG1 and MG2 or insufficient electric power. If the balance of electric power is balanced by the motors MG1 and MG2, the battery 50 is not charged / discharged. The motors MG1 and MG2 are both driven and controlled by a motor electronic control unit (hereinafter referred to as a motor ECU) 40. The motor ECU 40 detects signals necessary for driving and controlling the motors MG1 and MG2, such as signals from rotational position detection sensors 43 and 44 that detect the rotational positions of the rotors of the motors MG1 and MG2, and current sensors (not shown). The phase current applied to the motors MG1 and MG2 to be applied is input, and a switching control signal to the inverters 41 and 42 is output from the motor ECU 40. The motor ECU 40 is in communication with the hybrid electronic control unit 70, controls the driving of the motors MG1 and MG2 by a control signal from the hybrid electronic control unit 70, and, if necessary, data on the operating state of the motors MG1 and MG2. Output to the hybrid electronic control unit 70.

  An air conditioner compressor 58 is connected to the power line 54 via an air conditioner inverter 56 so that power from the battery 50 can be supplied to the air conditioner compressor 58. The air conditioner compressor 58 operates under the control of the hybrid electronic control unit 70.

  The battery 50 is managed by a battery electronic control unit (hereinafter referred to as a battery ECU) 52. The battery ECU 52 receives signals necessary for managing the battery 50, for example, a voltage between terminals from a voltage sensor (not shown) installed between the terminals of the battery 50, and a power line 54 connected to the output terminal of the battery 50. The charging / discharging current from the attached current sensor (not shown), the battery temperature Tb from the temperature sensor 51 attached to the battery 50, and the like are input. Output to the control unit 70. The battery ECU 52 also calculates the remaining capacity (SOC) based on the integrated value of the charge / discharge current detected by the current sensor in order to manage the battery 50.

  In the hybrid vehicle 20 of the embodiment, a navigation device 94 that displays and outputs a travel route to a designated destination is installed. The navigation device 94 includes a main body 96 containing a recording medium such as a hard disk in which map data and a route search program are stored, a GPS antenna 98 for receiving data such as information on the current position of the vehicle, and various instructions from the operator. And a touch panel display 99 capable of inputting.

  The hybrid electronic control unit 70 is configured as a microprocessor centered on the CPU 72, and in addition to the CPU 72, a ROM 74 for storing processing programs, a RAM 76 for temporarily storing data, an input / output port and communication not shown. And a port. The hybrid electronic control unit 70 includes an ignition signal from an ignition switch 80, a shift position SP from a shift position sensor 82 that detects the operation position of the shift lever 81, and an accelerator pedal position sensor 84 that detects the amount of depression of the accelerator pedal 83. The accelerator pedal opening Acc from the vehicle, the brake pedal position BP from the brake pedal position sensor 86 for detecting the depression amount of the brake pedal 85, the vehicle speed V from the vehicle speed sensor 88, the switch signal SW from the switch 89 operated by the operator, Data from the navigation device 94 (main body 96), signals from the receiver 92 (signals for instructing activation of the air conditioner, door locking, door unlocking, etc.) and the like are input via the input port. The hybrid electronic control unit 70 outputs a switching control signal to the switching element of the air conditioner inverter 56 through the output port. As described above, the hybrid electronic control unit 70 is connected to the engine ECU 24, the motor ECU 40, and the battery ECU 52 via the communication port, and exchanges various control signals and data with the engine ECU 24, the motor ECU 40, and the battery ECU 52. ing.

  The hybrid vehicle 20 of the embodiment thus configured calculates the required torque to be output to the ring gear shaft 32a as the drive shaft based on the accelerator opening Acc and the vehicle speed V corresponding to the depression amount of the accelerator pedal 83 by the driver. Then, the operation of the engine 22, the motor MG1, and the motor MG2 is controlled so that the required power corresponding to the required torque is output to the ring gear shaft 32a. As operation control of the engine 22, the motor MG1, and the motor MG2, the operation of the engine 22 is controlled so that power corresponding to the required power is output from the engine 22, and all of the power output from the engine 22 is the power distribution and integration mechanism 30. Torque conversion operation mode for driving and controlling the motor MG1 and the motor MG2 so that the torque is converted by the motor MG1 and the motor MG2 and output to the ring gear shaft 32a, and the required power and the power required for charging and discharging the battery 50. The engine 22 is operated and controlled so that suitable power is output from the engine 22, and all or part of the power output from the engine 22 with charging / discharging of the battery 50 is the power distribution and integration mechanism 30, the motor MG1, and the motor. The required power is converted to the ring gear shaft 32 with torque conversion by MG2. Charge / discharge operation mode in which the motor MG1 and the motor MG2 are driven and controlled to be output to each other, and a motor operation mode in which the operation of the engine 22 is stopped and the power corresponding to the required power from the motor MG2 is output to the ring gear shaft 32a. and so on.

  Next, the operation of the hybrid vehicle 20 of the embodiment configured as described above, in particular, the operation when operating the air conditioner before starting the drive system by the operation of the remote control key 90 by the operator and the hybrid vehicle 20 for its preparation. The drive control will be described. First, the operation when operating the air conditioner by operating the remote control key 90 will be described. FIG. 2 is a flowchart showing an example of the air conditioner operation process before system startup executed by the hybrid electronic control unit 70. This routine is repeatedly executed every predetermined time (for example, every several tens of milliseconds) when a signal instructing the operation of the air conditioner is received from the remote control key 90 via the receiver 92 when the drive system is stopped. The

  When the air conditioning operation process before system startup is executed, the CPU 72 of the hybrid electronic control unit 70 first executes a process of inputting the remaining capacity SOC of the battery 50 (step S100). Here, the remaining capacity SOC calculated from the charge / discharge current detected by the current sensor is input from the battery ECU 52 by communication. When the remaining capacity SOC is input, the input remaining capacity SOC is compared with a predetermined amount Sref (step S110), and when the remaining capacity SOC is equal to or larger than the predetermined amount Sref, the air conditioner inverter 56 is controlled to operate (step S110). S120), this routine is terminated. When the remaining capacity SOC is less than the predetermined amount Sref, the operation of the air conditioner is stopped (step S130), and this routine is terminated. Thereby, the temperature in the passenger compartment can be made comfortable in advance. Here, the predetermined amount Sref is a threshold value for determining whether the energy necessary for operating the air conditioner is left in the battery 50, and is, for example, 50% or 55% depending on the performance of the air conditioner or the drive system. It is determined as follows.

  Next, the operation of the hybrid vehicle 20 while the drive system is activated will be described. FIG. 3 is a flowchart showing an example of a drive control routine executed by the hybrid electronic control unit 70. This routine is repeatedly executed every predetermined time (for example, every several msec). When the drive control routine is executed, first, the CPU 72 of the hybrid electronic control unit 70 first determines the accelerator opening Acc from the accelerator pedal position sensor 84, the vehicle speed V from the vehicle speed sensor 88, the rotational speed Nm1, of the motors MG1, MG2. Nm2, a remaining capacity SOC of the battery 50, a switch signal SW from the switch 89, navigation data from the navigation device 94, and other data required for control are input (step S200). Here, the rotational speeds Nm1 and Nm2 of the motors MG1 and MG2 are input from the motor ECU 40 by communication from those calculated based on the rotational positions of the rotors of the motors MG1 and MG2 detected by the rotational position detection sensors 43 and 44. To do. Further, the remaining capacity SOC is calculated based on the charge / discharge current detected by the current sensor, and is input from the battery ECU 52 by communication.

  When the data is thus input, the required torque Tr * to be output to the ring gear shaft 32a as the drive shaft connected to the drive wheels 63a and 63b as the torque required for the vehicle based on the input accelerator opening Acc and the vehicle speed V. Is set (step S210). In the embodiment, the required torque Tr * is determined in advance by storing the relationship between the accelerator opening Acc, the vehicle speed V, and the required torque Tr * in the ROM 74 as a required torque setting map, and the accelerator opening Acc, the vehicle speed V, , The corresponding required torque Tr * is derived and set from the stored map. FIG. 4 shows an example of the required torque setting map.

  Subsequently, it is determined whether or not the switch signal SW is ON and whether or not the current traveling position is around the destination (steps S220 and S230). Here, for example, whether or not the current travel position is in the vicinity of the destination is determined by inputting the remaining distance from the current travel position to the destination from the navigation device 94 as navigation data, and the input remaining distance is predetermined. This can be done by determining whether the distance is less than the distance. Of course, the present invention is not limited to this, and it may be determined whether or not the current traveling position is around the destination based on other parameters such as the remaining time. When it is determined that the switch signal SW is off or the current travel position is not in the vicinity of the destination, the battery 50 is determined based on the remaining capacity SOC using a map that is determined so that the remaining capacity SOC approaches the predetermined amount S1. The required charge / discharge power Pb * to be charged / discharged is set (step S240). An example of this map is shown in FIG. As shown in the figure, when the remaining capacity SOC is larger than the predetermined amount S1, the larger the remaining capacity SOC is, the larger the discharge power (in the positive direction) is. When the remaining capacity SOC is smaller than the predetermined amount S1, the smaller the remaining capacity SOC is, the more charged The map was set so that the power (minus direction) would increase. Here, the predetermined amount S1 is, for example, 60% or the like that appropriately balances the recovery rate when recovering travel energy to the battery 50 during braking and the travel performance when traveling using the electric power from the battery 50 It is determined as follows.

  On the other hand, when the switch signal SW is ON and it is determined that the current traveling position is around the destination, the remaining capacity SOC is based on the remaining capacity SOC using a map that is determined so as to approach the predetermined value S2 that is larger than the predetermined value S1. The charge / discharge required power Pb * of the battery 50 is set (step S250). An example of this map is shown in FIG. As shown in the figure, when the remaining capacity SOC is larger than the predetermined amount S2, the discharge power increases as the remaining capacity SOC increases. When the remaining capacity SOC is smaller than the predetermined amount S2, the charging power increases as the remaining capacity SOC decreases. A map was established. Here, the predetermined amount S2 can supply sufficient power from the battery 50 when the air conditioner is operated by the remote control key 90 prior to the next activation of the drive system even if the recovery rate of the travel energy is slightly reduced. For example, it is determined as 65%. Therefore, when the air conditioner is operated by the remote control key 90, the power of the battery 50 is insufficient (the remaining capacity SOC is determined to be less than the predetermined amount Sref in step S130 of the routine of FIG. 2 and the operation of the air conditioner is stopped). Can be suppressed. In the embodiment, when it is determined that the switch signal SW is OFF or the current travel position is not in the vicinity of the destination, the charge / discharge required power Pb * is set so that the remaining capacity SOC of the battery 50 approaches the predetermined amount S1. Therefore, it is possible to suppress the deterioration of energy efficiency such as that the traveling energy cannot be sufficiently collected in the battery 50 as compared with the case where the remaining capacity SOC is always close to the predetermined amount S2.

  Subsequently, the engine required power Pe * required for the engine 22 is set (step S260). The required engine power Pe * can be calculated by subtracting the required charge / discharge power Pb * of the battery 50 from the sum of the required torque Tr * multiplied by the rotational speed Nr of the ring gear shaft 32a and the loss Loss. The rotation speed Nr of the ring gear shaft 32a can be obtained by multiplying the vehicle speed V by the conversion factor k, or can be obtained by dividing the rotation speed Nm2 of the motor MG2 by the gear ratio Gr of the reduction gear 35.

  Then, the target rotational speed Ne * and the target torque Te * of the engine 22 are set based on the set required power Pe * (step S270). This setting is performed by setting the target rotational speed Ne * and the target torque Te * based on the operation line for efficiently operating the engine 22 and the required power Pe *. FIG. 7 shows an example of the operation line of the engine 22 and how the target rotational speed Ne * and the target torque Te * are set. As shown in the figure, the target rotational speed Ne * and the target torque Te * can be obtained from the intersection of the operation line and a curve with a constant required power Pe * (Ne * × Te *).

  Next, using the set target rotational speed Ne *, the rotational speed Nr (Nm2 / Gr) of the ring gear shaft 32a, and the gear ratio ρ of the power distribution and integration mechanism 30, the target rotational speed Nm1 of the motor MG1 is given by the following equation (1). * Is calculated and a torque command Tm1 * of the motor MG1 is calculated by equation (2) based on the calculated target rotational speed Nm1 * and the current rotational speed Nm1 (step S280). Here, Expression (1) is a dynamic relational expression for the rotating element of the power distribution and integration mechanism 30. FIG. 8 is a collinear diagram showing the dynamic relationship between the rotational speed and torque in the rotating elements of the power distribution and integration mechanism 30. In the figure, the left S-axis indicates the rotation speed of the sun gear 31 that is the rotation speed Nm1 of the motor MG1, the C-axis indicates the rotation speed of the carrier 34 that is the rotation speed Ne of the engine 22, and the R-axis indicates the rotation speed of the motor MG2. The rotational speed Nr of the ring gear 32 obtained by dividing the number Nm2 by the gear ratio Gr of the reduction gear 35 is shown. Expression (1) can be easily derived by using this alignment chart. The two thick arrows on the R axis indicate that torque Te * output from the engine 22 when the engine 22 is normally operated at the operation point of the target rotational speed Ne * and the target torque Te * is transmitted to the ring gear shaft 32a. Torque and torque that the torque Tm2 * output from the motor MG2 acts on the ring gear shaft 32a via the reduction gear 35. Expression (2) is a relational expression in feedback control for rotating the motor MG1 at the target rotational speed Nm1 *. In Expression (2), “k1” in the second term on the right side is a gain of a proportional term. “K2” in the third term on the right side is the gain of the integral term.

Nm1 * = Ne * ・ (1 + ρ) / ρ-Nm2 / (Gr ・ ρ) (1)
Tm1 * = previous Tm1 * + k1 (Nm1 * -Nm1) + k2∫ (Nm1 * -Nm1) dt (2)

  When the target rotational speed Nm1 * and the torque command Tm1 * of the motor MG1 are calculated, the torque as the torque to be output from the motor MG2 using the required torque Tr *, the torque command Tm1 * and the gear ratio ρ of the power distribution and integration mechanism 30. Command Tm2 * is calculated by equation (3) (step S290). Expression (3) can be easily derived from the alignment chart of FIG. 8 described above.

  Tm2 * = (Tr * + Tm1 * / ρ) / Gr (3)

  Thus, when the target engine speed Ne *, the target torque Te *, and the torque commands Tm1 *, Tm2 * of the motors MG1, MG2 are set, the target engine speed Ne * and the target torque Te * of the engine 22 are set in the engine ECU 24. Torque commands Tm1 * and Tm2 * for motors MG1 and MG2 are transmitted to motor ECU 40 (step S300), and the drive control routine is terminated. The engine ECU 24 that has received the target rotational speed Ne * and the target torque Te * performs fuel injection control in the engine 22 such that the engine 22 is operated at an operating point indicated by the target rotational speed Ne * and the target torque Te *. Controls such as ignition control. The motor ECU 40 that has received the torque commands Tm1 * and Tm2 * controls the switching elements of the inverters 41 and 42 so that the motor MG1 is driven by the torque command Tm1 * and the motor MG2 is driven by the torque command Tm2 *. To do.

  According to the hybrid vehicle 20 of the embodiment described above, the remaining capacity SOC of the battery 50 is determined when the switch 89 is turned off or the current travel position is not in the vicinity of the destination while the drive system is activated. The engine 22 is set so that the charge / discharge required power Pb * is set so as to approach the fixed amount S1, the battery 50 is charged / discharged by the charge / discharge required power Pb *, and the required torque Tr * is output to the ring gear shaft 32a as the drive shaft. Controls the motors MG1 and MG2, and sets the charge / discharge required power Pb * so that the remaining capacity SOC approaches the predetermined amount S2 larger than the predetermined amount S1 when the switch 89 is turned on and the current traveling position is in the vicinity of the destination Thus, the battery 50 is charged / discharged with the required charge / discharge power Pb * and the required torque Tr * is output to the ring gear shaft 32a. Since the engine 22 and the motors MG1 and MG2 are controlled, it is possible to suppress the shortage of power of the battery 50 when the air conditioner is operated by the remote control key 90 before starting the system next time. It is possible to avoid the inconvenience caused by always keeping the remaining capacity SOC of 50 close to the predetermined amount S2. That is, the switch 89 is turned off to prevent energy efficiency from deteriorating for a user who does not wish to operate the air conditioner with the remote control key 90, or the remaining capacity SOC is brought close to the predetermined amount S2 immediately before the end of operation. It is possible to minimize the deterioration of efficiency.

  In the hybrid vehicle 20 of the embodiment, when the switch signal SW is determined to be on and it is determined that the current traveling position is in the vicinity of the destination, the remaining capacity SOC of the battery 50 is set to a predetermined amount S2 greater than the predetermined amount S1. Although the control is performed so as to approach, when the switch signal SW is determined to be on or the current traveling position is determined to be in the vicinity of the destination, the remaining capacity SOC of the battery 50 is determined. It is good also as what controls so that the predetermined amount S2 larger than fixed_quantity | quantitative_assay S1 may be approached.

  In the hybrid vehicle 20 of the embodiment, the remaining capacity SOC of the battery 50 is controlled to approach the predetermined amount S2 larger than the predetermined amount S1 based on the switch signal SW and the navigation data, but based on only the switch signal SW. The remaining capacity SOC of the battery 50 may be controlled so as to approach the predetermined amount S2 larger than the predetermined amount S1, or the predetermined amount S2 where the remaining capacity SOC of the battery 50 is larger than the predetermined amount S1 based only on the navigation data. The remaining capacity SOC of the battery 50 may be controlled so as to approach a predetermined amount S2 larger than the predetermined amount S1 based on other data and signals.

  In the hybrid vehicle 20 of the embodiment, the power of the motor MG2 is shifted by the reduction gear 35 and output to the ring gear shaft 32a. However, as illustrated in the hybrid vehicle 120 of the modified example of FIG. May be connected to an axle (an axle connected to the wheels 64a and 64b in FIG. 9) different from an axle to which the ring gear shaft 32a is connected (an axle to which the drive wheels 63a and 63b are connected).

  In the hybrid vehicle 20 of the embodiment, the power of the engine 22 is output to the ring gear shaft 32a as the drive shaft connected to the drive wheels 63a and 63b via the power distribution and integration mechanism 30, but the modified example of FIG. The hybrid vehicle 220 includes an inner rotor 232 connected to the crankshaft 26 of the engine 22 and an outer rotor 234 connected to a drive shaft that outputs power to the drive wheels 63a and 63b. A counter-rotor motor 230 that transmits a part of the power to the drive shaft and converts the remaining power into electric power may be provided.

  In the hybrid vehicle 20 of the embodiment, the power of the engine 22 is output to the ring gear shaft 32a as the drive shaft connected to the drive wheels 63a and 63b via the power distribution and integration mechanism 30, but the modified example of FIG. As illustrated in the hybrid vehicle 320, a transmission 330 having an output shaft connected to a drive shaft connected to the drive wheels 63a and 63b, and an engine 340 connected to an input shaft of the transmission 330 via a clutch CL. And a motor 350 connected to the input shaft of the transmission 330 may be provided.

  The embodiments of the present invention have been described using the embodiments. However, the present invention is not limited to these embodiments, and can be implemented in various forms without departing from the gist of the present invention. Of course you get.

1 is a configuration diagram showing an outline of a configuration of a hybrid vehicle 20 according to an embodiment of the present invention. It is a flowchart which shows an example of the air-conditioner action | operation process before system starting performed by the electronic control unit for hybrids 70 of an Example. It is a flowchart which shows an example of the drive control routine performed by the electronic control unit for hybrids 70 of an Example. It is explanatory drawing which shows an example of the map for request | requirement torque setting. It is a map which shows an example of the relationship between remaining capacity SOC and charging / discharging request | requirement power Pb *. It is a map which shows an example of the relationship between remaining capacity SOC and charging / discharging request | requirement power Pb *. It is explanatory drawing which shows a mode that an example of the operating line of the engine 22, and target rotational speed Ne * and target torque Te * are set. FIG. 4 is an explanatory diagram showing an example of a collinear diagram for dynamically explaining rotational elements of a power distribution and integration mechanism 30; FIG. 11 is a configuration diagram showing an outline of a configuration of a hybrid vehicle 120 according to a modification. FIG. 11 is a configuration diagram showing an outline of a configuration of a hybrid vehicle 220 of a modified example. FIG. 11 is a configuration diagram showing an outline of a configuration of a hybrid vehicle 320 of a modified example.

Explanation of symbols

20, 120, 220, 320 Hybrid vehicle, 22,340 Engine, 24 Engine electronic control unit (Engine ECU), 26 Crankshaft, 28 Damper, 30 Power distribution and integration mechanism, 31 Sun gear, 32 Ring gear, 32a Ring gear shaft, 33 Pinion gear, 34 carrier, 35, reduction gear, 40 motor electronic control unit (motor ECU), 41, 42 inverter, 43, 44 rotational position detection sensor, 50 battery, 51 temperature sensor, 52 battery electronic control unit (battery ECU) ), 54 power line, 56 air conditioner inverter, 58 air conditioner compressor, 60 gear mechanism, 62 differential gear, 63a, 63b driving wheel, 64a, 64b wheel, 70 hybrid electronic control unit, 72 CP , 74 ROM, 76 RAM, 80 Ignition switch, 81 Shift lever, 82 Shift position sensor, 83 Accel pedal, 84 Accel pedal position sensor, 85 Brake pedal, 86 Brake pedal position sensor, 88 Vehicle speed sensor, 89 Switch, 90 Remote control Key, 92 receiver, 94 navigation device, 96 main body, 98 GPS antenna, 99 display, 230 pair rotor motor, 232 inner rotor 234 outer rotor, 330 transmission, MG1, MG2 motor.

Claims (5)

An automobile comprising a drive system having an internal combustion engine capable of outputting driving power, power generation means for generating electric power using at least part of the power from the internal combustion engine, and an electric motor capable of inputting / outputting driving power There,
Power storage means capable of receiving power generated by the power generation means and capable of exchanging power with the motor;
An air conditioner for performing air conditioning in the passenger compartment by receiving power supplied from the power storage means;
An operation instruction receiving means capable of receiving an operation instruction of the air conditioner transmitted from a portable wireless device using a wireless communication before starting the drive system;
Air conditioning control means for controlling the air conditioning equipment so that air conditioning in the passenger compartment is performed when an operation instruction of the air conditioning equipment is received;
While the drive system is being activated, the first state is set as the target state of the power storage means during normal operation, and the power storage means is charged / discharged so as to approach the set target state, and the operator's operation The internal combustion engine, the power generation means, and the electric motor are controlled so that traveling power corresponding to the output is output, and when a predetermined condition is satisfied, as a preparation for using the air conditioner from the wireless device next time A second state in which more power than the first state can be supplied is set as the target state of the power storage means, and the power storage means is charged / discharged so as to approach the set target state of the power storage means, and the operator's An automobile comprising: control means for controlling the internal combustion engine, the power generation means, and the electric motor so that traveling power in accordance with an operation is output.   2. The control unit according to claim 1, wherein the control unit is a unit configured to control the power storage unit by setting the target state to the second state, assuming that the predetermined condition is satisfied when a predetermined operation is performed by an operator. Car. The automobile according to claim 1 or 2,
It has a navigation device that outputs the travel route to the destination specified by the operator,
The control means sets the target state of the power storage means to the second state and controls that the predetermined condition is satisfied when the navigation device determines that the designated destination is approached. A vehicle that is a means to do. The automobile according to any one of claims 1 to 3,
Comprising a state detecting means for detecting the state of the power storage means,
The air conditioning control means is means for not operating the air conditioner regardless of receiving the operation instruction when the detected state of the power storage means is not in a state where electric power can be supplied to the air conditioner. A drive system having an internal combustion engine capable of outputting power for traveling, power generation means for generating power using at least part of the power from the internal combustion engine, and an electric motor capable of inputting / outputting power for travel; and Power storage means capable of receiving generated power and exchanging power with the electric motor, air-conditioning equipment for supplying air from the power storage means to air-condition the passenger compartment, and portable before starting the drive system An operation instruction receiving means capable of receiving an operation instruction of the air conditioner transmitted from a wireless device using wireless communication, and the air conditioner so that air conditioning of the passenger compartment is performed when the operation instruction of the air conditioner is received. An air-conditioning control means for controlling the vehicle,
While the drive system is being activated, the first state is set as the target state of the power storage means during normal operation, and the power storage means is charged / discharged so as to approach the set target state, and the operator's operation The internal combustion engine, the power generation means, and the electric motor are controlled so that traveling power corresponding to the output is output, and when a predetermined condition is satisfied, as preparation for using the air conditioner from the wireless device next time A second state in which more power than the first state can be supplied is set as the target state of the power storage means, and the power storage means is charged / discharged so as to approach the set target state of the power storage means, and the operator's A method for controlling an automobile, comprising: controlling the internal combustion engine, the power generation unit, and the electric motor so that traveling power according to an operation is output.

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